How to balance working repertoire?

[Bob]

What would you suggest as a nice well-rounded balance of pieces to be working on all at once, so that I'm not neglecting any area and find that area atrophies later on?

lyrical, etude, a focus piece for a certain technical development, a piece that emphasizes the left-hand, all the different styles....  how can I balance this?

[BoliverAllmon]

I was recently told this. Learn only pieces that you are going to get mileage out of. That being both techincally and musically. Remember this and schedule your practicing around this idea.

boliver

[steinwayguy]

An etude, a contrapuntal piece (ex. Well-Tempered Clavier), a concerto (or work for piano and orchestra) should definitely be done. Other suggestions include a classical sonata, a substantial romantic composition or a 20th century piece.